Land scraping and leveling machine



J. T. COMPTON.

LAND SCRAPING AND LEVELiNG MACHINE.

APPLICATION mu) SEPT. 30, 1920.

1,397,265.. PatentedNov. 15,1921.

2 SHEETS-SHEET I.

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LAND SCR APING AND. LEVELING MACHINE.

APPLICATION FILED SEPT- 30, I920.

Patented Nov. 15, 1921.

2 SHEETS-SHEET 2.

"UNITED STATES minus '1. common, or rrxnny, carrronivra.

LAND SGRAPINGQAND LEVELINGMACHINE.

Specification of Letters Patent;

Patented not. 15, rear.

Application filed September 30, 1920. Serial No. 413,681.

To all whom it may concern:

Be it known that 1, JAMES T. COMPTON, a citizen of the United States, residing at Pixley, in the county of Tulare and State of California, haveinvented certain new and useful Improvements in Land Scraping and Leveling Machines; and I do declare the following to be a. full clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improved machine for scraping and leveling land, and one object of the invention is to provide a machine of the character described so constructed that it may be connected with a tractor and the blade adjusted and moved into and out of an operative position by the operator of the tractor, the actuating lever for the blade adjusting mechanism extending "forwardly so that it may be easily reached and operated by the tractor oper-;

ator. V

Another object of the invention is to provide means for mounting the blade and permitting the blade to have bodily movement in a vertical plane and at the same time tilting movement as it swings vertically.

Another object of the invention is to so mount this blade that the vertical movement and tilting movement may be imparted through the medium of a single actuating lever having connection with the means mounting the blade for bodily movement and also havingconnection' with the blade itself for imparting the tilting movement.

Another object of the invention is to so construct the frame or carriage of the scraper that the draft appliance thereof may iave connection with the scraping blade through the medium of pivotally mounted links and thus the blade is braced and dange'r of breakage due to overstrain upon the blade prevented when the'machineis in use.

Another object of the invention is to provide a land scraper so constructed that as the machine moves over afield, earth may be removed from high places and carried in front of the blade and dropped into low spots, excess earth being carried along in front of the blade and the ground left level.

This invention is illustrated in the accompanying drawings, wherein: Figure 1 is a perspective view of the improved machine looking at the forward end thereof.

Fig. 2 is a perspective viewlooking atthe rear end of the machine.

Fig. 3 is a longitudinal sectional view through the machine with the blade in an operative position. i

Fig. at is a similar view showing the blade swung upwardly to an inoperativeposition.

This improved land scraper and leveler is provided with a carriage having a rectangu lar frame formed of angle bars and provided with a forward bar 1,,a rear bar 2 and side Cross bars 4: extend between the provide a head 7 having a longitudinally ex tending slot 8 formed therein. This arm or bar 6 is braced by bracing bars 9 and it will thus be held against transverse movement. l-Ianger'brackets 10 are carried by the forward bar 1 and have shackles 11 connected with their lower ends by fasteners 12 which also serve to pivotally connect the links 13 with the hanger brackets. A clevis 14 is positioned beneath the flattened head 7 of the arm 6 and is provided with a bolt or pin .15 slidably mounted in the? slot Sso that this clevis may have movement'longitudinally of the arm. The clevis willthus be suspended from the arm 6 and by means of the bolt or pin 15 may be connected with the draft bar of a tractor by means of which. v the machine will operate. This clevis per;-

tends rearwardly beneath the bar or arm 6 and has its rear end portion provided with a shackle 16 with which are connected rods 17 which extend rearwardly in diverging relation and are connected with the shackles 11. It will thus be seen that there has been provided a draft appliance for the improved scraperwhich includes the hanger brackets 10 having the links 13 connected therewith,

the rods 17 and the clevis which is slidably mounted and loosely connected with theserods When the clevis is drawn forwardly by the action of the tractor, strain is placed upon the draw-rods 17 and apply to the hanger bracket 10 and links 13. V

- The scraping blade 18 ispositioned with in the hollow frame and is provided with side flanges 19 so that when the device is in usethe earth which is scraped from the ground will be held in front of the blade and prevented from passing off of the ends thereof. This blade is provided with brackets 20 which are positioned adjacent the lower edge of the blade and are positioned in front of bracket arms 21 which extend rearwardly from the rear face of this blade. The brackets 20'have the links 13pivotally connected therewith and the bracket arms 21 which are positioned beneath the transversely extending bracingbar 22 have the hanger bars or links 23 pivotally connected therewith. These hanger bars or links 23 extend upwardly and have their upper ends pivotally connected with arms 24 which extend forwardly from a rocker shaft 25 journaled in bearings carried by the cross bars 4 and also journaled in bearings 26 carried by the rear bar 2. From an inspection of Figs. 3 and 4, it will be readily seen that when the rocker shaft is rotated and the arms 24 swung vertically, the blade will be moved bodily in a vertical plane and thus moved into or out of an operative position.

In order to impart rotary movement to the rocker shaft 25, there has been provided an actuating lever 27 which is pivotally connected with a supporting arch 28 carried by the forward and rear bars of the frame.

This actuating lever- 27 is a latch lever and is provided with the usual latch mechanism 29. for engaging a rack 30 carried by the arch 28. Arms 31 and 32 extend fromthe lever 27 and the arm 32 which is braced by a bracing bar 33 is connected with a link 34 which extends "rearwardly of the-machine and is loosely connected with the turning arm or handle 35 of the rocker shaft29, It will thus be seen that, when the lever 27 is swung upon its pivot, the rocker shaft will be rotated and thus the scraping blade moved bodily in a vertical plane. A'spring 36 is provided to assist in swinging the-lever 27 upwardly andraising the blade. When the blade is moved vertically, it is desired;-

to have the bladeswing forwardly and rear wardly upon its pivotal mounting thus permitting the blade to move from the position shown in- Fig. 3 to that shown inFig. 4. In

7 order to do so, there has been provideda link 37 which is connected to the lower arm 31" of thelever and with the upper edge portion of the blade through the medium of a pivot bracket 38; Therefore, when the lever 27 isswung to impart rotary movement to the rocker shaft and thus cause the blade to be. 1 moved vertically, thelink 37 will'be moved longitudinally and the: blade will be rocked upon itspivotal' mounting.

When this device is in use, it will be positioned to the rear of a' tractor and the draft bar of the tractor connected with the clevis 14. As the tractor and scraper move across;

a field, the scraping blade willengage the- I ground and high spots will bescraped off and the earth carried infront of the blade as shown in Fig. 3. Hollows will be filled up and thus a smooth field left. When the end of the field is reached'and it is desired to leavethe surplusearth in a pile upon the ground, the'lever 27 will be. grasped by the 7 operator of the tractor and swung upwardly thus causingthe scraping blade to be moved bodily to a; raised :position. At the same time, the link 37 will cause the blade to be swung forwardly and-the earthwill thus be 7 easily dumped from the blade. The blade can then be returned tothe operative position or maybe retained'in the raised position if, it isflno longer desired to use the scraper. f

. There has thus been provided a scraper which will be so constructed that it may be trailed behind a tractor and actuated by the. operator of the tractor. .Tliere has further. been provideda scraper having improved 8 means for mounting the scraping blade and permitting the blade to be bodily adjusted and also swung upon a pivot point as it is moved vertically. p Iclaim; H x f 1. A land scraperand leveler comprising a carriage, a rocker shaft extending trans versely of theframe, a scraper blade, arms extending fromsaid rocker shaft, links pivotally connected with said arms and loosely 9 connected with-said blade, draft means having connection with said blade, and means for rotating said rocker shaft to impart vertical movement to said blade, said means having connection with the blade'for tilting 1 the blade forwardly and ,rearwardly as it? moves vertically,

2. A land scraper and leveler comprising blade, a rocker shaft to the rear'of said 1 blade, a draft appliance in front of the blade and connected qwiththe lower portion there of, arms extending from said rocker shaft,- hanger. links pivotally connected 'with the arms and having loose connection with the 1 lower portion of theblade to the rear of the connection with the draft appliance, an actuating lever pivotally mounted in advance of. said blade and having upper and lower vertically disposed: arms, a linkconnectingthe' 1 lower arm of the blade, a turning arm for said rocker shaft, and a link connecting the upper arm of said'lever with said turning arm V i 3. A land scraper and leveler comprising 1 a carriage, a bodily movable vertically disposed scraping blade, means mounting the blade for bodilyj vertical movement having pivotal, connection therewith, a pivotally ing the second arm with said blade for im- 1 parting tilting movement to the blade as the blade moves vertically. I

4. A land scraper and leveler comprising a carriage, a scraping blade, means carried by said carriage for mounting the blade for bodily movement in a vertical plane and having pivotal connection with said blade, and actuating means for the blade mounting means having connection with the blade for imparting tilting movement to the blade as the blade moves vertically.

5. A land scraping and leveling machine comprising a carriage, a rocker shaft carried thereby, a yoke carried by the carriage, an actuating lever pivotally connected with the yoke and having upper and lower arm eX- tensions, a lever arm extending from the rocker shaft, a link connecting the lever arm of the rocker shaft with the upper arm of said actuating lever, a scraping blade disposed vertically, arms extending from the rocker shaft, links having pivotal connection with the lower portion of the blade to the rear thereof and pivotally connected with the arms of said rocker shaft, hanger brackets carried by said frame, links connected with the hanger brackets and pivotally connected with the blade adjacent the lower edge thereof, and a link pivotally connected with the upper portion of the blade and pivotally connected with the lower arm of the actuating lever.

6. A land scraper and leveler comprising a carriage, a scraping blade disposed vertically, a rocker shaft, arms extending from the rocker shaft, links connected with the arms, a rod connected with the rear face of the scraper blade and engaging the links to pivotally mount the same, hanger brackets carried by the frame, links pivotally con nected with the hanger brackets and pivotally connected with the forward face of the scraper adjacent the lower edge thereof, and means for imparting rotary movement to the rocker shaft having connection with the upper portion of the blade for imparting pivotal movement to the blade as the blade is moved vertically.

In testimony whereof I have hereunto set my hand.

JAMES T. COMPTON. 

